Which waves can carry matter?

True or False: All waves need a medium to travel.

Frequency is ...

Sound waves travel at the same speed through solids, liquids, and gases.

What is a wave?

The crest of a wave is ...

True or False: Light waves can travel through a vacuum.

Which object will allow light to pass through it?

What color is formed when all the colors of light are combined?

Which is a natural source of light?

What is the difference between a longitudinal wave and a transverse wave?

An opaque object ...

Which choice below is NOT one of the seven colors of light waves?

Why are codes used to relay messages?

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